10-day forecast for Grand Isle, VT: 60° to 85°, with precipitation expected on 7 days. The table below breaks each day into morning, afternoon, evening and overnight.
77°
Best day: Tuesday, August 11
66° · 2.31 in
Worst day: Sunday, August 16
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1085° / 65°0.28
Morning70°feels 70°
Afternoon85°feels 90°
Evening72°feels 73°
Overnight68°feels 68°
85 °
Grand Isle, Monday, 10 August
Rain. High 85°, low 65°.
Pressure29.91 inHg
Wind12.8 mph S
Humidity67%
Visibility6.2 mi
Dew point62°
Tue, 1177° / 69°0.03
Morning71°feels 71°
Afternoon76°feels 76°
Evening74°feels 74°
Overnight71°feels 71°
77 °
Grand Isle, Tuesday, 11 August
Light rain. High 77°, low 69°.
Pressure29.83 inHg
Wind15.2 mph NW
Humidity57%
Visibility6.2 mi
Dew point59°
Wed, 1272° / 68°0.34
Morning69°feels 68°
Afternoon72°feels 72°
Evening71°feels 71°
Overnight70°feels 70°
72 °
Grand Isle, Wednesday, 12 August
Rain. High 72°, low 68°.
Pressure29.77 inHg
Wind6.1 mph S
Humidity69%
Visibility6.2 mi
Dew point60°
Thu, 1371° / 65°0.34
Morning65°feels 65°
Afternoon71°feels 70°
Evening69°feels 68°
Overnight67°feels 67°
71 °
Grand Isle, Thursday, 13 August
Rain. High 71°, low 65°.
Pressure29.80 inHg
Wind19.2 mph NW
Humidity53%
Visibility6.2 mi
Dew point53°
Fri, 1469° / 60°0
Morning61°feels 60°
Afternoon65°feels 64°
Evening69°feels 67°
Overnight64°feels 63°
69 °
Grand Isle, Friday, 14 August
Clear. High 69°, low 60°.
Pressure30.06 inHg
Wind18.5 mph NW
Humidity55%
Visibility—
Dew point47°
Sat, 1571° / 61°0
Morning62°feels 61°
Afternoon64°feels 63°
Evening70°feels 70°
Overnight67°feels 66°
71 °
Grand Isle, Saturday, 15 August
Overcast. High 71°, low 61°.
Pressure30.21 inHg
Wind7.9 mph S
Humidity65%
Visibility—
Dew point51°
Sun, 1666° / 61°2.31
Morning65°feels 65°
Afternoon64°feels 64°
Evening62°feels 63°
Overnight62°feels 62°
66 °
Grand Isle, Sunday, 16 August
Heavy rain. High 66°, low 61°.
Pressure29.91 inHg
Wind17.9 mph N
Humidity75%
Visibility—
Dew point57°
Mon, 1773° / 60°0.18
Morning61°feels 61°
Afternoon66°feels 66°
Evening72°feels 72°
Overnight67°feels 67°
73 °
Grand Isle, Monday, 17 August
Light rain. High 73°, low 60°.
Pressure29.94 inHg
Wind23.8 mph NW
Humidity78%
Visibility—
Dew point57°
Tue, 1875° / 65°0.05
Morning65°feels 65°
Afternoon68°feels 68°
Evening75°feels 75°
Overnight70°feels 70°
75 °
Grand Isle, Tuesday, 18 August
Light rain. High 75°, low 65°.
Pressure30.09 inHg
Wind18 mph S
Humidity77%
Visibility—
Dew point59°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Grand Isle, VT around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.